ISO 815-1-2008 硫化或热塑性橡胶.压缩永久变形的测定.第1部分_室温或更高温度.pdf

标准号：ISO 815-1-2008
实施状态：作废
中文名称：硫化或热塑性橡胶.压缩永久变形的测定.第1部分:室温或更高温度
英文名称：Rubber, vulcanized or thermoplastic - Determination of compression set - Part 1: At ambient or elevated temperatures
发布日期：2008-02
被替代标准：ISO 815-1-2014
代替标准：ISO 815-1991;ISO 815 Technical Corrigendum 1-1993;ISO/FDIS 815-1-2007
采用标准：DIN ISO 815-1-2010,IDT;DIN ISO 815-1-2009,IDT;BS ISO 815-1-2009,IDT;NF T46-011-1-2008,IDT
起草单位：ISO/TC 45
标准简介：This part of ISO 815 specifies methods for the determination of the compression set characteristics of
vulcanized and thermoplastic rubbers at ambient or elevated temperatures.
The methods are intended to measure the ability of rubbers of hardness within the range 10 IRHD to 95 IRHD
to retain their elastic properties at specified temperatures after prolonged compression at constant strain
(normally ) under one of the alternative sets of conditions described. For rubber of nominal hardness
80 IRHD and above, a lower compression strain is used: for a nominal hardness from 80 IRHD to 89 IRHD
and for a nominal hardness from 90 IRHD to 95 IRHD.
NOTE 1 When rubber is held under compression, physical or chemical changes can occur that prevent the rubber
returning to its original dimensions after release of the deforming force. The result is a set, the magnitude of which depends
on the time and temperature of compression as well as on the time and temperature of recovery. At elevated temperatures,
chemical changes become increasingly more important and lead to a permanent set.
NOTE 2 Short-time compression set tests, typically for , at elevated temperatures are commonly used as a measure of
the state of cure, a means of material classification and a specification to ensure the quality of a compound. Longer tests,
typically for , at elevated temperatures take account of the effect of ageing and are often used to predict service
performance, including that of sealing materials. Short-time tests at ambient temperature show mainly the effect of physical
changes (re-orientation of the molecular chains and the fillers).
文件格式：PDF
文件大小：320.74KB
文件页数：16
（以上信息更新时间为：2019-11-22）



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